What is the whole poem about the beautiful years of life?

Full poem: A ten-mile flat lake is covered with frost, and every inch of blue hair is filled with worry about the past. Looking at the moon to protect each other, I only envy the mandarin ducks but not the immortals.

This poem first appeared on a painting in "A Chinese Ghost Story" directed by Tsui Hark. The original text is: "Ten miles of flat lake, the sky is covered with frost, and every inch of blue hair is worried about the past. Looking at the moon shape alone To protect each other, I only envy mandarin ducks but not immortals." The lyrics of the background interlude in "A Chinese Ghost Story" are also named after this poem - "Ten Miles of Flat Lake and Sky Full of Frost". ?

"A Chinese Ghost Story" is a period romance film produced by Tsui Hark and directed by Cheng Xiaodong, starring Leslie Cheung, Joey Wong, Wu Ma and others. The film is a remake of the 1960 Shaw Brothers film of the same name, telling the story of a human-ghost romance between scholar Ning Caichen and female ghost Nie Xiaoqian.

The original sentence comes from "The Poetry Collection of Bai Yiqingxiang - Farewell" by Qingxiang Baiyi. Later, director Tsui Hark changed it to "The sky is covered with frost over ten miles of flat lake, and every inch of blue hair is worried about the past." It was placed in "A Chinese Ghost Story" One of the paintings became a love poem between Nie Xiaoqian and Ning Caichen.

The original sentence in "The Poetry Collection of the Prime Minister in White - Farewell" is: "The sky is covered with frost in the ten-mile long pavilion, how many years can we spend with gray hair and gray hair."

Vernacular translation: We bid farewell in the long pavilion , it is Shuangqiu. We are both young at this time (green hair), but I don’t know how many years will pass before we meet again. I think we will be old by then (grey hair).